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Tap water quality report

Old Post Road Water District

EPA monitoring tested this supplier for 12 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

12
contaminants tested
11
detected
1,500
people served
0
health-based violations
New York rankingsLead in New YorkPFAS in New York
Water source
GWP
Ownership
Local government
Counties served
Westchester

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
20
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2019-03-01
Other Monitoring Resolved 2019-03-01
MON Monitoring Resolved 2018-01-01 → 2018-01-31
MON Monitoring Resolved 2018-01-01 → 2018-01-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31
MR Monitoring Resolved 2018-01-01 → 2018-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromoform
9.021 µg/L
No EPA limit set
worst single sample: 9.6 µg/L
22/22 SYR4 2013–2019
Chloroform
3.0875 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
22/22 SYR4 2013–2019
Dibromochloromethane
11.095 µg/L
No EPA limit set
worst single sample: 13 µg/L
22/22 SYR4 2013–2019
TTHM
28.285 µg/L 35%
of the EPA limit 80 µg/L
worst single sample: 33 µg/L
22/22 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
7.517 µg/L 13%
of the EPA limit 60 µg/L
worst single sample: 11.9 µg/L
22/22 SYR4 2013–2019
Bromodichloromethane
6.53 µg/L
No EPA limit set
worst single sample: 6.8 µg/L
21/22 SYR4 2013–2019
Dibromoacetic Acid
4.06 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
21/22 SYR4 2013–2019
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2024
Monochloroacetic Acid
5.696 µg/L
No EPA limit set
worst single sample: 5.78 µg/L
5/22 SYR4 2013–2019
Dichloroacetic Acid
5.839 µg/L
No EPA limit set
worst single sample: 6.58 µg/L
4/22 SYR4 2013–2019
Trichloroacetic Acid
4.21 µg/L
No EPA limit set
 1/22 SYR4 2013–2019
1 contaminants tested, none detected
Monobromoacetic Acid

Utility contact

Contact
SIRIPHONLAI, UDOMLUG
Phone
914-422-1212
Email
usiriphonlai@whiteplainsny.gov

Frequently asked questions about Old Post Road Water District

Is Old Post Road Water District tap water safe to drink?

EPA monitoring detected 11 contaminants in Old Post Road Water District's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Old Post Road Water District's water?

EPA monitoring detected Bromoform, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Old Post Road Water District serve?

Old Post Road Water District reports serving 1,500 people in New York, per its EPA record.

Has Old Post Road Water District had any water quality violations?

The EPA has 20 violations on file for Old Post Road Water District, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.